485812215 has 72 divisors (see below), whose sum is σ = 1008393840. Its totient is φ = 221266080.

The previous prime is 485812139. The next prime is 485812219. The reversal of 485812215 is 512218584.

485812215 is a `hidden beast` number, since 48 + 581 + 22 + 15 = 666.

It is not a de Polignac number, because 485812215 - 2¹³ = 485804023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 485812215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485812219) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1792530 + ... + 1792800.

It is an arithmetic number, because the mean of its divisors is an integer number (14005470).

Almost surely, 2^485812215 is an apocalyptic number.

485812215 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

485812215 is an abundant number, since it is smaller than the sum of its proper divisors (522581625).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

485812215 is an equidigital number, since it uses as much as digits as its factorization.

485812215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570 (or 286 counting only the distinct ones).

The product of its digits is 25600, while the sum is 36.

The square root of 485812215 is about 22041.1482232664. The cubic root of 485812215 is about 786.1211426821.

The spelling of 485812215 in words is "four hundred eighty-five million, eight hundred twelve thousand, two hundred fifteen".